Water-jacket



A. B. COX.

WATER JACKET.

APPL| CATION FILED SEPT. 22.1919.

v1,359,334. Patented Nov. 16, 1920.

UNITED STATES ABRAHAM B. COX, 0F CHERRY VALLEY, NEW YORK.

WATER-JACKET.

Application filed September 22,- 1919.

1 "0 aZZ whom it may concern Be it known that I, ABRAHAM E. Cox, a citizen of the United States, and a resident Cherry V alley, Gtsego county, New York, have invented a new and useful Improvement in Water-Jackets, of which the follow ing is a full, clear, and exact description.

My invention relates to improvements in water-jackets such as are used for absorbing excess heat from engine cylinders or the like, and the object of my invention is to produce a simple form of water-jacket applicable to all such structures, which will not burst in case the liquid therein freezes, thereby obviating the necessity of extraneous protection for the jackets in cold weather, and also the use of anti-freezing mixtures for the liouid in the jacket. My invention can assume a great many shapes and is susceptible to a good many modifications of form to adapt it to various types of engine cylinders or other structures which are to be protected by a water-jacket, the onlyessential thing being that the water-jacket shall be substantiallv wider at one end than at the other, and preferably at the top than at the bottom, and that a flexible closure be provided for the wider end. In this way I get an essentially wedge shape cross section to the jacket, and naturally if freezing occurs it will begin at the thin edge of the acket, from which edge the heat will naturally be first absorbed by the outside cold air, and then it follows that as the freezing continues toward the wider end of the jacket the expansive action will be toward the said wider end. and this expansion will be taken up or at least compensated for by the flexi-' ble end closure of the jacket. All of which will be better understood from the description which follows.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar reference characters indicate corresponding parts in all the views.

Figure 1 is a broken elevation partly in vertical section ofccnventional engine cylinders to which my improved jacket is applied, and r Specification of Letters Patent.

Patented Nov. 16, 1920.

Serial No. 325,453.

Fig. 2 is a broken sectional plan of the structure shown in Fig. 1.

The illustration is snnply by way of example, as it will be understood from the description below that the invention can be applied to possibly all types of engine cylinders and to other structures to be protected, though the form or outline of the jacket will necessarily be changed to suit said structures, and the flexible closure which I shall presently describe will naturally need to be adapted to such forms. As illustrated the engine cylinders 10 have valves 11 in the head, and the valves are inclosed bv a conventional housing 12. Each cylinder is surrounded by. a waterjacket 13 in substantially the usual way, but the water-j acket instead of being of the customary shape is thin at one edge, preferably the lower edge as shown at a, and gradually widens toward the top I), which is the widest part of the water-jacket. In the present illustration the upper en of the waterjacket is inclosed by a pressed steel closure 14 which has a flexible top 15. It will be seen, therefore, that if freezing occurs it will begin at the thin edge a of the waterjacket, and will progress upward, and the expansion of the formed ice will follow the inclination of the water-jacket and will consequently be upward. Here it will be taken care of bv the flexible top 15 so thatthere will be no break in the jacket.

It will be understood that engine cylinders and other similar structures which are to be protected by a water-jacket and in which the water-jacket is liable to freeze, assume very many forms and modifications of structure. For instance, I have shown a conventional engine of the valve in the head type, but some of these cylinders have valves on the sides, or there are many shapes or configurations. It.will be understood of course that it is not possible to show the application of my principle of water-jacket construction to all these various typ s, but it will also be readily seen that a jacket of this wedge-shape structure can be applied to the various types, and that the flexible top can also be made to cover or pass around any valves or the like so as to adapt itself to such pecnliarities of structure.

I claim: 7

V 1. A Water-j acket having one portion relat- 5 tively. thin and rigidly closed, and the opposite portion relatively Wide and closed by a V flexible cover.

2. A Water-jacket for cylinders and the like having its lower portion thin and rigidly closecl, its upper portion Wider than the 10 lower portion, and a flexible covering for the upper portion. l

ABRAHAM B. COX- Witnesses: WARRE B. HUToHINsoN, HUBnRT HUToHINsoN. 

